| gnuplot_close | Close all open gnuplot files or terminate an active gnuplot sub-process. |
| gnuplot_open_file | Open a gnuplot file for visualization of images and control values. |
| gnuplot_open_pipe | Open a pipe to a gnuplot process for visualization of images and control values. |
| gnuplot_plot_ctrl | Plot control values using gnuplot. |
| gnuplot_plot_funct_1d | Plot a function using gnuplot. |
| gnuplot_plot_image | Visualize images using gnuplot. |